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by HalfaDave Wed Apr 17, 2024 7:28 pm
Cox Engine of The Month
Dragonfly vs. RC Bee
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Dragonfly vs. RC Bee
I am not familiar with the later years Cox cast engines, never owned one. But I was curious if they perform equally to the older milled case Cox engines.
I am particularly curious about the differences, if any, between the Cox RC Bee and the older Dragonfly engines.
Does anyone have experience with both where they could offer a comparison of the two engines?
Thanks,
I am particularly curious about the differences, if any, between the Cox RC Bee and the older Dragonfly engines.
Does anyone have experience with both where they could offer a comparison of the two engines?
Thanks,
VUgearhead- Gold Member
- Posts : 155
Join date : 2013-07-02
Age : 56
Location : Boynton Beach, FL
Re: Dragonfly vs. RC Bee
I personally have not seen a difference in performance and actually prefer a cast crankcase to a milled one. (Unless it is an engine I have made!). There is more character about a cast crankcase.
As for longevity I can't comment - but the cast crankcases were introduced as a money saving option to save on machining time. This didn't quite work as planned because the cast crankcase took more setting up time before it could be machined and was not easy to set up for machining.
There are bound to be differences in wear as the material will be different and, some of the cast crankcases I have, have been machined a little off centre and are not perfectly symmetrical at the back. They still run fine though.
As for longevity I can't comment - but the cast crankcases were introduced as a money saving option to save on machining time. This didn't quite work as planned because the cast crankcase took more setting up time before it could be machined and was not easy to set up for machining.
There are bound to be differences in wear as the material will be different and, some of the cast crankcases I have, have been machined a little off centre and are not perfectly symmetrical at the back. They still run fine though.
ian1954- Diamond Member
- Posts : 2688
Join date : 2011-11-16
Age : 69
Location : England
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